yea .
Well if you wana save some cash , go to any garden shop get 3x water butts ( i did this when i started out)
they are called the sunkey 200lt or something , that will give you 600 liters the buts cost new 25 quid each a 200 lt per day RO for less then 300ish you are on £375.00
Then get a submersible pump from machine mart for about £30.00 it will pump the water out of the buts in about 30 secs per 25 liters or you could keep your buts 2 foot above ground lvl and simply open the tap on the but and fill your barrles personally pump is better ,